1、为了我们平时方便开发,我们可以在同一个idea窗口创建多个项目模块,创建方式如下
2、项目中pom.xm文件的内容如下
1 <?xml version="1.0" encoding="UTF-8"?> 2 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 3 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> 4 <modelVersion>4.0.0</modelVersion> 5 <parent> 6 <groupId>org.springframework.boot</groupId> 7 <artifactId>spring-boot-starter-parent</artifactId> 8 <version>2.1.3.RELEASE</version> 9 <relativePath/> <!-- lookup parent from repository --> 10 </parent> 11 <groupId>cn.kgc</groupId> 12 <artifactId>springbootmybatis</artifactId> 13 <version>0.0.1-SNAPSHOT</version> 14 <name>springbootmybatis</name> 15 <description>Demo project for Spring Boot</description> 16 17 <properties> 18 <java.version>1.8</java.version> 19 </properties> 20 21 <dependencies> 22 <dependency> 23 <groupId>org.springframework.boot</groupId> 24 <artifactId>spring-boot-starter-jdbc</artifactId> 25 </dependency> 26 <dependency> 27 <groupId>org.springframework.boot</groupId> 28 <artifactId>spring-boot-starter-thymeleaf</artifactId> 29 </dependency> 30 <dependency> 31 <groupId>org.springframework.boot</groupId> 32 <artifactId>spring-boot-starter-web</artifactId> 33 </dependency> 34 <dependency> 35 <groupId>org.mybatis.spring.boot</groupId> 36 <artifactId>mybatis-spring-boot-starter</artifactId> 37 <version>2.0.0</version> 38 </dependency> 39 <!--一定注意版本号,此处需要修改,把默认score的删掉哦--> 40 <dependency> 41 <groupId>mysql</groupId> 42 <artifactId>mysql-connector-java</artifactId> 43 <version>5.1.38</version> 44 </dependency> 45 46 <dependency> 47 <groupId>org.springframework.boot</groupId> 48 <artifactId>spring-boot-starter-test</artifactId> 49 <scope>test</scope> 50 </dependency> 51 <!--spring boot 分页查询,需要手动配置--> 52 <dependency> 53 <groupId>com.github.pagehelper</groupId> 54 <artifactId>pagehelper-spring-boot-starter</artifactId> 55 <version>1.2.3</version> 56 </dependency> 57 58 </dependencies> 59 60 <build> 61 <plugins> 62 <plugin> 63 <groupId>org.springframework.boot</groupId> 64 <artifactId>spring-boot-maven-plugin</artifactId> 65 </plugin> 66 </plugins> 67 </build> 68 69 </project>
pom.xml
3、项目结构如下
4、在pojo包下创建Classes.java
1 package cn.kgc.pojo; 2 import java.io.Serializable; 3 /** 4 * @author:南京课工场大数据学院 Holly老师 5 * QQ/微信:864918306 6 * Created by Holly on 2019/4/2. 7 */ 8 public class Classes implements Serializable{ 9 private Integer cid; 10 private String cname; 11 12 public Classes() { 13 } 14 15 public Classes(Integer cid, String cname) { 16 this.cid = cid; 17 this.cname = cname; 18 } 19 20 public Integer getCid() { 21 return cid; 22 } 23 24 public void setCid(Integer cid) { 25 this.cid = cid; 26 } 27 28 public String getCname() { 29 return cname; 30 } 31 32 public void setCname(String cname) { 33 this.cname = cname; 34 } 35 36 @Override 37 public String toString() { 38 return "Classes{" + 39 "cid=" + cid + 40 ", cname=‘" + cname + ‘\‘‘ + 41 ‘}‘; 42 } 43 }
Classes.java
5、在pojo包下创建Student.java
1 package cn.kgc.pojo; 2 import java.io.Serializable; 3 /** 4 * @author:南京课工场大数据学院 Holly老师 5 * QQ/微信:864918306 6 * Created by Holly on 2019/4/2. 7 */ 8 public class Student implements Serializable{ 9 private Integer sid; 10 private String sname; 11 private String password; 12 private String subject; 13 private Double result; 14 private Classes classes; 15 16 public Student() { 17 } 18 19 public Student(Classes classes) { 20 this.classes = classes; 21 } 22 23 public Student(Integer sid, String sname, String password, String subject, Double result, Classes classes) { 24 this.sid = sid; 25 this.sname = sname; 26 this.password = password; 27 this.subject = subject; 28 this.result = result; 29 this.classes = classes; 30 } 31 32 public Integer getSid() { 33 return sid; 34 } 35 36 public void setSid(Integer sid) { 37 this.sid = sid; 38 } 39 40 public String getSname() { 41 return sname; 42 } 43 44 public void setSname(String sname) { 45 this.sname = sname; 46 } 47 48 public String getPassword() { 49 return password; 50 } 51 52 public void setPassword(String password) { 53 this.password = password; 54 } 55 56 public String getSubject() { 57 return subject; 58 } 59 60 public void setSubject(String subject) { 61 this.subject = subject; 62 } 63 64 public Double getResult() { 65 return result; 66 } 67 68 public void setResult(Double result) { 69 this.result = result; 70 } 71 72 public Classes getClasses() { 73 return classes; 74 } 75 76 public void setClasses(Classes classes) { 77 this.classes = classes; 78 } 79 80 @Override 81 public String toString() { 82 return "Student{" + 83 "sid=" + sid + 84 ", sname=‘" + sname + ‘\‘‘ + 85 ", password=‘" + password + ‘\‘‘ + 86 ", subject=‘" + subject + ‘\‘‘ + 87 ", result=" + result + 88 ", classes=" + classes + 89 ‘}‘; 90 } 91 }
Student.java
6、在mapper包下创建ClassesMapper.java
1 package cn.kgc.mapper; 2 3 import cn.kgc.pojo.Classes; 4 5 import java.util.List; 6 /** 7 * @author:南京课工场大数据学院 Holly老师 8 * QQ/微信:864918306 9 * Created by Holly on 2019/4/2. 10 */ 11 public interface ClassesMapper { 12 List<Classes> selectClasses(); 13 }
ClassesMapper.java
7、在mapper包下创建StudentMapper.java
1 package cn.kgc.mapper; 2 3 import cn.kgc.pojo.Student; 4 5 import java.util.List; 6 /** 7 * @author:南京课工场大数据学院 Holly老师 8 * QQ/微信:864918306 9 * Created by Holly on 2019/4/2. 10 */ 11 public interface StudentMapper { 12 List<Student> selectStudent(Student student); 13 }
StudentMapper.java
8、在resources文件夹下的mapper文件夹下创建ClassesMapper.xml
1 <?xml version="1.0" encoding="UTF-8" ?> 2 <!DOCTYPE mapper 3 PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" 4 "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 5 <mapper namespace="cn.kgc.mapper.ClassesMapper"> 6 <select id="selectClasses" resultType="Classes"> 7 select * from classes 8 </select> 9 </mapper>
ClassesMapper.xml
9、在resources文件夹下的mapper文件夹下创建StudentMapper.xml
1 <?xml version="1.0" encoding="UTF-8" ?> 2 <!DOCTYPE mapper 3 PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" 4 "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 5 <mapper namespace="cn.kgc.mapper.StudentMapper"> 6 <select id="selectStudent" resultMap="studentMap"> 7 select s.*,c.cname from student s,classes c where s.cid=c.cid 8 <if test="classes!=null and classes.cid!=-1"> 9 and c.cid=#{classes.cid} 10 </if> 11 </select> 12 <resultMap id="studentMap" type="Student"> 13 <id property="sid" column="SID"/> 14 <result property="sname" column="SNAME"/> 15 <result property="password" column="PASSWORD"/> 16 <result property="subject" column="SUBJECT"/> 17 <result property="result" column="RESULT"/> 18 <!-- 19 <association property="classes" javaType="Classes"> 20 <result property="cid" column="CID"/> 21 <result property="cname" column="CNAME"/> 22 </association> 23 --> 24 <association property="classes" javaType="Classes" resultMap="classesMap"/> 25 </resultMap> 26 <resultMap id="classesMap" type="Classes"> 27 <id property="cid" column="CID"/> 28 <result property="cname" column="CNAME"/> 29 </resultMap> 30 31 </mapper>
StudentMapper.xml
10、在java文件夹下的cn.kgc.service路径下创建ClassesService.java文件
1 package cn.kgc.service; 2 3 import cn.kgc.pojo.Classes; 4 import org.springframework.stereotype.Service; 5 import org.springframework.transaction.annotation.Transactional; 6 7 import java.util.List; 8 /** 9 * @author:南京课工场大数据学院 Holly老师 10 * QQ/微信:864918306 11 * Created by Holly on 2019/4/2. 12 */ 13 public interface ClassesService { 14 List<Classes> showOption(); 15 }
ClassesService.java
11、在java文件夹下的cn.kgc.service路径下创建ClassesServiceImpl.java文件
1 package cn.kgc.service; 2 3 import cn.kgc.mapper.ClassesMapper; 4 import cn.kgc.pojo.Classes; 5 import org.springframework.beans.factory.annotation.Autowired; 6 import org.springframework.stereotype.Service; 7 import org.springframework.transaction.annotation.Transactional; 8 9 import java.util.List; 10 /** 11 * @author:南京课工场大数据学院 Holly老师 12 * QQ/微信:864918306 13 * Created by Holly on 2019/4/2. 14 */ 15 @Service 16 @Transactional 17 public class ClassesServiceImpl implements ClassesService{ 18 @Autowired 19 private ClassesMapper classesMapper; 20 @Override 21 public List<Classes> showOption() { 22 return classesMapper.selectClasses(); 23 } 24 }
ClassesServiceImpl.java
12、在java文件夹下的cn.kgc.service路径下创建StudentService.java文件
1 package cn.kgc.service; 2 import cn.kgc.pojo.Student; 3 import com.github.pagehelper.PageInfo; 4 import java.util.List; 5 /** 6 * @author:南京课工场大数据学院 Holly老师 7 * QQ/微信:864918306 8 * Created by Holly on 2019/4/2. 9 */ 10 public interface StudentService { 11 List<Student> showData(Student student); 12 //插件做分页数据查询(查询所有和条件查询) 13 PageInfo<Student> showPageData(Integer pageno,Integer pagesize,Student student); 14 }
StudentService.java
13、在java文件夹下的cn.kgc.service路径下创建StudentServiceImpl.java文件
1 package cn.kgc.service; 2 3 import cn.kgc.mapper.StudentMapper; 4 import cn.kgc.pojo.Student; 5 import com.github.pagehelper.Page; 6 import com.github.pagehelper.PageHelper; 7 import com.github.pagehelper.PageInfo; 8 import org.springframework.beans.factory.annotation.Autowired; 9 import org.springframework.stereotype.Service; 10 import org.springframework.transaction.annotation.Transactional; 11 12 import java.util.List; 13 /** 14 * @author:南京课工场大数据学院 Holly老师 15 * QQ/微信:864918306 16 * Created by Holly on 2019/4/2. 17 */ 18 @Service 19 @Transactional 20 public class StudentServiceImpl implements StudentService{ 21 @Autowired 22 private StudentMapper studentMapper; 23 @Override 24 public List<Student> showData(Student student) { 25 return studentMapper.selectStudent(student); 26 } 27 28 //分页查询 29 @Override 30 public PageInfo<Student> showPageData(Integer pageno, Integer pagesize, Student student) { 31 //创建分页工具类 32 Page pageutil= PageHelper.startPage(pageno,pagesize); 33 //将要进行分页的数据先做查询所以 34 studentMapper.selectStudent(student); 35 return new PageInfo<Student>(pageutil); 36 } 37 }
StudentServiceImpl.java
14.在java文件夹下的cn.kgc.controller路径下创建CenterController.java文件
1 package cn.kgc.controller; 2 import cn.kgc.pojo.Classes; 3 import cn.kgc.pojo.Student; 4 import cn.kgc.service.ClassesService; 5 import cn.kgc.service.StudentService; 6 import com.github.pagehelper.PageInfo; 7 import org.springframework.beans.factory.annotation.Autowired; 8 import org.springframework.web.bind.annotation.RequestMapping; 9 import org.springframework.web.bind.annotation.RestController; 10 11 import java.util.List; 12 /** 13 * @author:南京课工场大数据学院 Holly老师 14 * QQ/微信:864918306 15 * Created by Holly on 2019/4/2. 16 */ 17 @RestController 18 public class CenterController{ 19 @Autowired 20 private ClassesService classesService; 21 22 @Autowired 23 private StudentService studentService; 24 25 @RequestMapping("/option.do") 26 public List<Classes> getOptionData(){ 27 return classesService.showOption(); 28 } 29 30 @RequestMapping("/getData.do") 31 public List<Student> getStudentData(Integer cid){ 32 33 return studentService.showData(new Student(new Classes(cid,null))); 34 } 35 //插件分页查询 36 @RequestMapping("/getPageData.do") 37 public PageInfo<Student> findPageData(Integer cid,Integer pageno){ 38 Integer pagesize=3; 39 Student student=new Student(new Classes(cid,null)); 40 return studentService.showPageData(pageno,pagesize,student); 41 } 42 }
CenterController.java
15.编辑java文件夹下的cn.kgc路径下的SpringbootmybatisApplication.java文件
1 package cn.kgc; 2 3 import org.mybatis.spring.annotation.MapperScan; 4 import org.springframework.boot.SpringApplication; 5 import org.springframework.boot.autoconfigure.SpringBootApplication; 6 /** 7 * @author:南京课工场大数据学院 Holly老师 8 * QQ/微信:864918306 9 * Created by Holly on 2019/4/2. 10 */ 11 @SpringBootApplication 12 @MapperScan("cn.kgc.mapper") 13 public class SpringbootmybatisApplication { 14 15 public static void main(String[] args) { 16 SpringApplication.run(SpringbootmybatisApplication.class, args); 17 } 18 19 }
SpringbootmybatisApplication.java
16.编辑resources文件夹下的application.properties文件
#端口号 server.port=9090 #数据源的配置 spring.datasource.driver-class-name=com.mysql.jdbc.Driver spring.datasource.url=jdbc:mysql://localhost:3306/kgc spring.datasource.username=root spring.datasource.password=ok #给某个包下的类的全路径生成别名 mybatis.type-aliases-package=cn.kgc.pojo #注册映射xml文件 mybatis.mapper-locations=classpath:mapper/*.xml
application.properties
17.在resources文件夹下的static文件夹下创建index.html文件
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>Title</title> 6 </head> 7 <body> 8 <center> 9 <h1>学员管理系统</h1> 10 <form id="claConditon"> 11 <p> 12 班级: 13 <select name="cid"> 14 <option value="-1">--请选择--</option> 15 </select> 16 <input type="button" value="提交"/> 17 </p> 18 </form> 19 <table> 20 <tr> 21 <td>学号</td> 22 <td>班级</td> 23 <td>姓名</td> 24 <td>科目</td> 25 <td>成绩</td> 26 </tr> 27 </table> 28 <p id="pageroot"></p> 29 </center> 30 <script type="text/javascript" src="js/jquery-3.1.1.js"></script> 31 <script type="text/javascript" src="js/index.js"></script> 32 </body> 33 </html>
index.html
18.在resources文件夹下的static文件夹下创建js文件夹,并在该文件夹下添加jquery-3.1.1.js文件
19.在resources文件夹下的static文件夹下创建js文件夹,并在该文件夹下创建index.js文件
1 $(function () { 2 //下拉菜单 3 getOptionData(); 4 //初始化数据 5 // initData(); 6 //分页初始化数据 7 initPageData(1); 8 9 //条件查询 10 $("[type=button]").click(function () { 11 initPageData(1); 12 }); 13 }); 14 15 //分页初始化数据 16 function initPageData(pageno){ 17 var cid=$("[name=cid]").val(); 18 $.ajax({ 19 url:"getPageData.do", 20 type:"post", 21 dataType:"json", 22 data:{"cid":cid,"pageno":pageno}, 23 async:true, 24 success:function (obj) { 25 console.log(obj); 26 $("tr:not(tr:first)").remove(); 27 var str=""; 28 $.each(obj.list,function (i) { 29 str+="<tr>"; 30 str+="<td>"+obj.list[i].sid+"</td>"; 31 str+="<td>"+obj.list[i].classes.cname+"</td>"; 32 str+="<td>"+obj.list[i].sname+"</td>"; 33 str+="<td>"+obj.list[i].subject+"</td>"; 34 str+="<td>"+obj.list[i].result+"</td>"; 35 str+="</tr>"; 36 }); 37 $("table").append(str); 38 39 $("#pageroot").html(" "); 40 var pagestr="第"+obj.pageNum+"/"+obj.pages+"页 "; 41 if(obj.pageNum>1){ 42 pagestr+="<a href=‘javascrpt:void(0);‘ onclick=‘initPageData("+obj.firstPage+")‘>首页</a> "; 43 pagestr+="<a href=‘javascrpt:void(0);‘ onclick=‘initPageData("+obj.prePage+")‘>上一页</a> "; 44 } 45 if(obj.pageNum<obj.pages){ 46 pagestr+="<a href=‘javascrpt:void(0);‘ onclick=‘initPageData("+obj.nextPage+")‘>下一页</a> "; 47 pagestr+="<a href=‘javascrpt:void(0);‘ onclick=‘initPageData("+obj.lastPage+")‘>末页</a> "; 48 } 49 50 pagestr+="共"+obj.total+"条 "; 51 $("#pageroot").append(pagestr); 52 }, 53 error:function () { 54 alert("initPageData error"); 55 } 56 }); 57 } 58 59 60 //初始化数据 61 function initData(){ 62 var cid=$("[name=cid]").val(); 63 $.ajax({ 64 url:"getData.do", 65 type:"post", 66 dataType:"json", 67 data:{"cid":cid}, 68 async:true, 69 success:function (obj) { 70 console.log(obj); 71 $("tr:not(tr:first)").remove(); 72 var str=""; 73 $.each(obj,function (i) { 74 str+="<tr>"; 75 str+="<td>"+obj[i].sid+"</td>"; 76 str+="<td>"+obj[i].classes.cname+"</td>"; 77 str+="<td>"+obj[i].sname+"</td>"; 78 str+="<td>"+obj[i].subject+"</td>"; 79 str+="<td>"+obj[i].result+"</td>"; 80 str+="</tr>"; 81 }); 82 $("table").append(str); 83 }, 84 error:function () { 85 alert("initData error"); 86 } 87 }); 88 } 89 //下拉菜单 90 function getOptionData() { 91 $.ajax({ 92 url:"option.do", 93 type:"post", 94 dataType:"json", 95 data:{}, 96 async:true, 97 success:function (obj) { 98 var str=""; 99 $.each(obj,function (i) { 100 str+="<option value=‘"+obj[i].cid+"‘>"+obj[i].cname+"</option>"; 101 }); 102 $("select").append(str); 103 }, 104 error:function () { 105 alert("getOptionData error"); 106 } 107 }); 108 }
index.js
20.运行SpringbootmybatisApplication文件,
21.浏览器运行
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原文地址:https://www.cnblogs.com/holly8/p/10514968.html